Climate Change Data Portal
DOI | 10.1111/aec.12700 |
High tolerance of repeated heatwaves in Australian native plants | |
French, Kris1; Jansens, Isaac B.1; Ashcroft, Michael B.1; Ecroyd, Heath2,3; Robinson, Sharon A.1 | |
发表日期 | 2019 |
ISSN | 1442-9985 |
EISSN | 1442-9993 |
卷号 | 44期号:4页码:597-608 |
英文摘要 | Heatwaves, with increases in day and night time temperatures, are predicted to increase in frequency. We investigated the response of forbs, shrubs, grasses and non-grass monocotyledons from warm temperate environments in Australia to repeated heatwaves to determine if responses differed with growth form and whether the addition of hot night temperatures influenced the ability of species to grow and acclimate. Plants were subjected to 3, 3-day heatwaves comprising either hot days and nights or hot days and cool nights, with control plants maintained under cool days and nights. All species were thermotolerant to repeated heatwaves, although two species showed lower biomass under heat treatments, indicating repeated heatwaves influenced function in some, but not all species. While there was evidence of photosynthetic damage in some species, these recovered by the end of the experiment. While grasses and one herb showed some evidence of photosystem acclimation, increases in the threshold temperatures for membrane breakdown only occurred in one shrub. Leaf sacrifice in grasses was significantly increased after repeated heatwaves suggesting that fuel loads in grass communities will increase in the future. These results indicate high resilience for these Australian native warm temperate plants although lower growth rates in some species after heatwaves may result in changes to community composition. |
WOS研究方向 | Environmental Sciences & Ecology |
来源期刊 | AUSTRAL ECOLOGY
![]() |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/98058 |
作者单位 | 1.Univ Wollongong, Sch Biol Sci, Ctr Sustainable Ecosyst Solut, Wollongong, NSW 2522, Australia; 2.Illawarra Hlth & Med Res Inst, Wollongong, NSW, Australia; 3.Univ Wollongong, Sch Biol Sci, Wollongong, NSW, Australia |
推荐引用方式 GB/T 7714 | French, Kris,Jansens, Isaac B.,Ashcroft, Michael B.,et al. High tolerance of repeated heatwaves in Australian native plants[J],2019,44(4):597-608. |
APA | French, Kris,Jansens, Isaac B.,Ashcroft, Michael B.,Ecroyd, Heath,&Robinson, Sharon A..(2019).High tolerance of repeated heatwaves in Australian native plants.AUSTRAL ECOLOGY,44(4),597-608. |
MLA | French, Kris,et al."High tolerance of repeated heatwaves in Australian native plants".AUSTRAL ECOLOGY 44.4(2019):597-608. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。